At two opposite Wilhelminian style facades of the yard, several long steel steles of different proportions are nonchalantly leaning against the wall. Their claddings are made of Corten-steel and are shining velvety in the sun. At night, their symetry axes are marked by streaks of light from their root point to the top. At the side buildings, 24 small papers of different kinds were put behind glass in steel frames and are exposed to the sunlight. That way, the light sensitive material can be watched, as it changes over time.